The cold should kill me.

  March water, northern coast, a body already pushed past every limit by the carving, the ink, the ritual—my skin is blue, and I can see it when I lift my hands from the water, a corpse-color that belongs on the dead, not the living. My muscles are failing, each stroke weaker than the last, my lungs burning with every breath, sharp and raw, like I'm inhaling fire instead of salt air.

  By all rights, I should be dead—hypothermia alone should have stopped my heart by now, and medical texts say unconsciousness comes within minutes in water this cold, death within fifteen. I've been swimming for what feels like hours, but the marks are doing their work.

  They work as I swim, burning faintly against my ribcage, beating with that oceanic rhythm that has become as familiar as my own heartbeat. The cold that should be killing me is just cold—uncomfortable yet survivable, like the sea has decided I belong to it now and won't let its new creature die so easily.

  The ink changed me, and the connection to the Deep One changed me further—I'm not entirely human anymore, human-plus, human-different, a thing the word doesn't quite cover, a creature that can survive water that would kill anyone else.

  Terror should follow, mourning for whatever I used to be, but instead I just swim.

  The water feels different now—cold and wet, yes, but also present, aware. Currents I couldn't sense before, subtle shifts in pressure and temperature, guide me toward shore without my understanding how. The sea knows I'm here, and it's helping me, carrying me on currents that shouldn't exist, pushing me toward land with an intention I can almost sense.

  Or the thing in the sea is helping me. Making sure its new toy reaches shore alive. Making sure the entertainment continues.

  Best not to think about that too hard.

  The shore comes slowly.

  Rocks first, black and jagged, slick with spray—they cut my hands as I pull myself up, but I barely notice, just another pain added to the symphony of damage my body has taken. Blood wells from my palms, mixes with the seawater, washes away. Then sand, gray and coarse, streaked with seaweed and the debris of storms.

  Dragging myself through the shallows, I collapse on the cold wet stone and lie there for a long time.

  The sky is gray above me, the same gray it was when they marched me to the tide pool, the same gray that watched while they pushed me under. How long has it been? Hours? Days? The ritual felt like eternity and an instant all at once.

  Waves hiss against the rocks behind me, and somewhere a gull cries, while the marks keep their steady rhythm, synchronized with the tide in a way that feels both comforting and deeply wrong.

  I'm too weak to move—my body has given everything it has, and now it lies here on this nameless beach, waiting to recover or to die. I don't know which I want. I close my eyes.

  "Ah. There you are."

  A voice, female and calm, not surprised to find a half-dead girl washed up on the shore. My eyes open.

  A woman stands over me, middle-aged and sharp-featured, with dark eyes that take in everything and give nothing away. She moves like water, smooth and efficient, her clothes practical—dark wool, heavy boots, the kind of outfit you'd wear for rough terrain and rough weather.

  And her hand—her right hand. The last two fingers are missing, the stumps long-healed but still angry red, old wounds, deliberate wounds.

  "Who—" My voice comes out as a croak.

  "Later." She's already lifting me, and I notice how strong she is. Wiry muscle beneath plain clothes, the strength of someone who has spent years doing physical work. She cradles me against her chest like I weigh nothing. "Right now, you need warmth and food and sleep."

  "The cult—"

  "Thinks you're dead." Satisfaction in her voice. Grim, hard-earned. "They saw you go under and not come up. They're celebrating right now. Another successful offering, another soul fed to their hungry god." She almost smiles. "They have no idea what's about to happen to them."

  "Who are you?"

  "My name is Mei." Walking now, carrying me up a path I can't see, away from the shore and the rocks and the water that changed me. "I've been watching the cult for a long time. Waiting for someone like you."

  "Someone like me?"

  "Someone who survived." Her eyes meet mine. Dark, knowing, filled with the same kind of empty I'm starting to feel in my own chest. "They've been doing this for decades, Eleanor. Hundreds of offerings. Every single one has died. Either in the ritual or shortly after."

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  "I didn't die."

  "No." Recognition flickers in her expression. One survivor acknowledging another. "You didn't. And that makes you the most dangerous thing they've ever created."

  The cottage is warm—that's the first thing I notice as she carries me through the door, warmth, real warmth from a fire burning in a stone hearth. After the cold of the sea, after the cold that has settled into my very bones, it feels like being reborn, like stepping out of the grave and into the beginning of a life.

  Mei sets me down on a bed, narrow but soft, covered in wool blankets that smell of lavender and woodsmoke, then builds up the fire until it roars and brings me broth that tastes of salt and herbs—maybe medicine, a remedy to help my body recover.

  Every drop goes down. No questions about what's in it. Right now, survival is the only thing that matters.

  "The marks," she says at some point. Hours have passed. Maybe more. "May I see them?"

  I'm too tired to refuse. I let her peel back the ruined white gown, expose the symbols carved in my chest.

  She draws a sharp breath.

  "They're glowing," she says, her voice hushed. "I've never seen—" She stops, shakes her head. "Most offerings, when they wash up... the marks are dead. Just scars. The connection was there during the ritual, but it didn't last."

  "These are different."

  "Yes." She traces the air above one of the symbols without quite touching. "These are still connected, still active. Whatever the Deep One saw in you, it decided to... invest."

  "Invest in what?"

  "I don't know." She sits back on her heels, studying me with those dark, assessing eyes. "But I think we're going to find out."

  Later, much later, she tells me about herself.

  "My sister," she says. We're sitting by the fire now, and I'm wrapped in blankets, slowly thawing, slowly returning to a semblance of human. "Twenty-two years ago. They took her."

  My gaze finds her—the hard lines of her face, the missing fingers.

  "She was thirteen. We lived in a village on the coast. Not the same coast, but close enough. Another country, another cult, but the worship was the same. The rituals. The thing in the water." Her voice is flat. Reciting facts like they happened to someone else. "Men came in the night. They took her and two other children. We found her dress three days later, on the beach. It had stains on it that we couldn't identify then."

  "Ritual stains."

  "Yes." She holds my gaze. Dark. Hard. "Five years I spent trying to find her. The authorities wouldn't help. Scared, maybe. Corrupted. Or just unwilling to believe. So I did it myself. Learned to track, to investigate, to become invisible when I needed to be."

  "And?"

  "I found them. Eventually. Pieces of the puzzle, scattered across Europe. Networks that moved children like cargo. Priests who served a thing in the water. Rituals performed on specific nights, when the tide was right and the stars aligned." She holds up her maimed hand. "They found me too. Caught me watching one of their ceremonies. Took the fingers one joint at a time over three days. Wanted to know who I was working with, who else knew about them."

  The stumps draw my eyes—the scars, evidence of pain I can barely imagine.

  "How did you escape?"

  "I waited. I thought through the pain. Remembered everything they said, everything they did, filed it away for later. And when they made a mistake, when one of them got careless, left a knife too close, I took it and put it through his eye." She almost smiles. "I've been hunting them ever since. Twenty-two years."

  "How many have you killed?"

  "Seventeen." Her tone goes flat. "Not enough—there are always more, cut off one head and two grow back, but I keep cutting anyway."

  Twenty-two years of hunting, and seventeen kills.

  I have eighteen names burned into my memory. Eighteen targets, laid out like a map.

  "I'm going to kill them," I say. The words come out flat. Certain. Not the voice of a sixteen-year-old scholar's daughter. The voice of a different creature. One born in the black water, in the crushing attention of the Deep One, in the moment when I chose rage over surrender. "Every single one. Marsh and Celeste and all the rest. Until the list is empty."

  Mei is quiet for a long moment as the fire crackles, wind howling outside, and somewhere in the distance I can hear the sea, always there, always waiting.

  Then she nods. Once. Slowly.

  "Good," she says. "That's exactly what I was hoping you'd say."

  I sleep.

  For the first time since they took me from my mother's arms, I sleep without dreams, without nightmares, without the counting girl's voice echoing in my head. The marks thrum their oceanic rhythm while the fire crackles in the hearth, and Mei watches over me like a guardian, or a jailer, or both at once.

  When I wake, I will be someone new. Someone harder. Someone with eighteen names carved into her memory and the patience to hunt them all.

  You are kind, my mother said. Stay that way.

  I tried, Mother. I'm sorry.

  But kind girls don't survive what they did to me.

  I am not a kind girl anymore.

  Dawn comes gray and cold.

  Waking to the smell of porridge and the sound of rain against the cottage windows, I see that Mei is already up, tending the fire, her movements efficient and precise.

  "How do you feel?" she asks without turning around.

  Taking stock, I find my body aches with a deep, bone-level exhaustion that has nothing to do with muscles and everything to do with being unmade and remade in black water. But beneath the exhaustion, a different sensation—a new awareness.

  The symbols burn beneath my ribs, and for the first time I realize I can sense the rain outside—every drop, the moisture in the air, the water vapor rising from the fire, the dew on the grass outside the window, all of it connected, all of it present in a way it never was before.

  "Different," I reply.

  Mei turns. Studies me with those dark, assessing eyes.

  "Different how?"

  My hand extends, focusing on the cup of water sitting on the table beside my bed.

  The water shivers, ripples, without anyone touching it.

  Mei goes still.

  "They gave you a gift," she says slowly. "The Deep One. It didn't just mark you. It changed you."

  I stare at the cup. At the water that responded to my attention, my will, my existence.

  I think about the sea outside. About the rain on the windows. About the blood in the veins of every person who ever hurt me. Blood that is mostly water. Blood that my body might now be able to sense, to find, to follow.

  "Yes," I reply. "It did."

  The marks beat, the rain falls, and somewhere beneath the waves, an ancient presence stirs in its dreams.

  And I understand what I'm becoming.

  Dangerous—a thing they'll come hunting for, eventually. Let them come.